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    <title>Document</title>
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    <script>
        /*
        *var arr = [10,15,2,32,5,4,20,8,48,54,6];找出数组中小于10 的数据，并组成一个新的数组 */
        var arr = [10,15,2,32,5,4,20,8,48,54,6];
        var str = [];
        for(var i = 0; i < arr.length; i++){
            if(arr[i] < 10){
                str = str.concat(arr[i]) ;
            }
        }
        console.log(str);
        
    </script>
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